Remove support for expvar-backed metrics (#5437) #4

	name: Lint Checks

	on:
	push:
	branches: [main]

	pull_request:
	branches: [main]

	concurrency:
	group: ${{ github.workflow }}-${{ (github.event.pull_request && github.event.pull_request.number) \|\| github.ref \|\| github.run_id }}
	cancel-in-progress: true

	# See https://github.com/ossf/scorecard/blob/main/docs/checks.md#token-permissions
	permissions: # added using https://github.com/step-security/secure-workflows
	contents: read

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- name: Harden Runner
	uses: step-security/harden-runner@f086349bfa2bd1361f7909c78558e816508cdc10 # v2.8.0
	with:
	egress-policy: audit # TODO: change to 'egress-policy: block' after a couple of runs

	- uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2

	- uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
	with:
	go-version: 1.22.x

	- name: Print Jaeger version
	run: make echo-version

	- name: Install tools
	run: make install-test-tools

	- name: Lint
	run: make lint

	- name: Ensure PR is not on main branch
	uses: ./.github/actions/block-pr-not-on-main

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